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More in-place construction

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Also for struct literal fields, array literal elements and associative array
literal elements as well as basic types allocated on the heap.
This commit is contained in:
Martin 2016-07-20 21:31:03 +02:00
parent 9f728a4b4c
commit 126184a8b6
7 changed files with 107 additions and 109 deletions
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39
gen/llvmhelpers.cpp
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@ -74,7 +74,7 @@ bool isTargetWindowsMSVC() {
******************************************************************************/
static llvm::ManagedStatic<llvm::LLVMContext> GlobalContext;
llvm::LLVMContext& getGlobalContext() { return *GlobalContext; }
llvm::LLVMContext &getGlobalContext() { return *GlobalContext; }
/******************************************************************************
* DYNAMIC MEMORY HELPERS
@ -523,8 +523,7 @@ DValue *DtoCastFloat(Loc &loc, DValue *val, Type *to) {
} else if (fromsz < tosz) {
rval = new llvm::FPExtInst(DtoRVal(val), tolltype, "", gIR->scopebb());
} else if (fromsz > tosz) {
rval =
new llvm::FPTruncInst(DtoRVal(val), tolltype, "", gIR->scopebb());
rval = new llvm::FPTruncInst(DtoRVal(val), tolltype, "", gIR->scopebb());
} else {
error(loc, "invalid cast from '%s' to '%s'", val->type->toChars(),
to->toChars());
@ -550,8 +549,8 @@ DValue *DtoCastDelegate(Loc &loc, DValue *val, Type *to) {
return DtoPaintType(loc, val, to);
}
if (to->toBasetype()->ty == Tbool) {
return new DImValue(
to, DtoDelegateEquals(TOKnotequal, DtoRVal(val), nullptr));
return new DImValue(to,
DtoDelegateEquals(TOKnotequal, DtoRVal(val), nullptr));
}
error(loc, "invalid cast from '%s' to '%s'", val->type->toChars(),
to->toChars());
@ -1327,30 +1326,16 @@ Type *stripModifiers(Type *type, bool transitive) {
////////////////////////////////////////////////////////////////////////////////
LLValue *makeLValue(Loc &loc, DValue *value) {
Type *valueType = value->type;
bool needsMemory;
LLValue *valuePointer;
if (value->isIm()) {
valuePointer = DtoRVal(value);
needsMemory = !DtoIsInMemoryOnly(valueType);
} else if (value->isLVal()) {
valuePointer = DtoLVal(value);
needsMemory = false;
} else if (value->isConst()) {
valuePointer = DtoRVal(value);
needsMemory = true;
} else {
valuePointer = DtoAlloca(valueType, ".makelvaluetmp");
DLValue var(valueType, valuePointer);
DtoAssign(loc, &var, value);
needsMemory = false;
}
if (value->isLVal())
return DtoLVal(value);
if (needsMemory) {
valuePointer = DtoAllocaDump(value, ".makelvaluetmp");
}
if (value->isIm() || value->isConst())
return DtoAllocaDump(value, ".makelvaluetmp");
return valuePointer;
LLValue *mem = DtoAlloca(value->type, ".makelvaluetmp");
DLValue var(value->type, mem);
DtoAssign(loc, &var, value);
return mem;
}
////////////////////////////////////////////////////////////////////////////////